package com.excellent.auth.config;

import com.excellent.utils.RsaUtils;
import lombok.Data;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Primary;
import org.springframework.stereotype.Component;

import javax.annotation.PostConstruct;
import java.io.File;
import java.security.PrivateKey;
import java.security.PublicKey;

/**
 * @author Xxacker
 */
@Data
@Component
@Primary
@ConfigurationProperties(prefix = "excellent.jwt")
public class JwtProperties {

    private String secret;         // 密钥
    private String pubKeyPath;     // 公钥路径
    private String priKeyPath;     // 私钥路径
    private int expire;            // token过期时间
    private PublicKey publicKey;   // * 公钥
    private PrivateKey privateKey; // * 私钥
    private String cookieName;     //cookie的名称
    private Integer cookieMaxAge;  //cookie的最大生存时间，单位是分钟

    private static final Logger logger = LoggerFactory.getLogger(JwtProperties.class);

    /**
     * @PostContruct 在构造方法执行之后执行该方法
     */
    @PostConstruct
    public void init(){
        try {
            File pubKey = new File(pubKeyPath);
            File priKey = new File(priKeyPath);
            if (!pubKey.exists() || !priKey.exists()) {
                // 生成公钥和私钥
                RsaUtils.generateKey(pubKeyPath, priKeyPath, secret);
            }
            // 获取公钥和私钥
            this.publicKey = RsaUtils.getPublicKey(pubKeyPath);
            this.privateKey = RsaUtils.getPrivateKey(priKeyPath);
        } catch (Exception e) {
            logger.error("初始化公钥和私钥失败！", e);
            throw new RuntimeException();
        }
    }
}
